Adduct-aldehyde and its use for the preparation of a...

Details Adduct-aldehyde and its use for the preparation of a... Adduct-aldehyde and its use for the preparation of a...

C - Chemistry, Metallurgy

07

C

260/581, 260/264

C07C 401/00 (2006.01) C07D 487/04 (2006.01) C07F 7/10 (2006.01)

Patent

CA 2018769

The invention relates to an adduct-aldehyde of the general formula (see figure I) wherein R is a hydrogen atom or an optionally etherified or esterified hydroxy group, R1 is an optionally etherified or esterified hydroxy group, and Z is a sulphonyl group or a group of the general formula (see figure II) ) wherein A and B are equal or different and represent C1-C4 alkoxy groups, or wherein A and B together constitute a phenylimino group or a o-phenylene group. The invention also relates to a method of preparing said adduct-aldehyde and to the use of said aldehyde as an intermediate for the preparation of vitamin-D compounds.

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